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Instead of trying hard to avoid them in the first place, it is designed to recover quickly from the occasional thud against the wall, and resume flying. 首先，它的設計思想竝不是千方百計地躲避障礙物，而是偶爾“咚”的一聲撞牆後，它能迅速調整自身狀態，恢複飛行。